2022 American Transplant Congress
Analysis of Sars-Cov-2-Specific T-Cell Responses Using Novel Single-Cell Multiplexed Isolight in Covid-19 Convalescents
1Northwestern University, Chicago, IL, 2IsoPlexis, Branford, CT
*Purpose: COVID-19 has poor outcomes in transplant recipients with reduced antibody responses. However, the exact cellular immune response against SARS-CoV-2 remains largely unclear. We developed…2022 American Transplant Congress
Focal Distribution of TCMR Causes False Negative Results in Spatially Resolved Molecular Diagnostic Assays
University of Pittsburgh, Pittsburgh, PA
*Purpose: Molecular assays on ~3mm biopsy (BX) fragments of cannot confirm histologic T-cell mediated rejection (TCMR) in ~50% of routine biopsies, and fail to detect…2022 American Transplant Congress
Abnormal Kidney T Cell Metabolism During Ischemia Reperfusion Injury Can Be Modified to Improve Organ Structure and Function
Johns Hopkins University School of Medicine, Baltimore, MD
*Purpose: T cells play an important role in the pathophysiology of kidney ischemia reperfusion injury (IRI). Metabolic programming of T cells, a rapidly evolving field,…2022 American Transplant Congress
Infiltrating CD8+ Cytotoxic T Cells Are Converted to a Regulatory Phenotype in Accepted Kidney Allografts
*Purpose: Mouse kidney allografts are spontaneously accepted in select, fully-mismatched donor-recipient strain combinations (i.e. DBA/2J to C57BL/6 (B6)) without any immunosuppressive drug treatment. We have…2022 American Transplant Congress
Regulatory T and B Cell Responses Are Equally Compromised During Antibody-Mediated Rejection of Kidney Allografts
*Purpose: Although considerable advances have been made in understanding the cellular effector mechanisms responsible for donor-specific antibody (DSA) generation leading to antibody-mediated rejection (ABMR), the…2022 American Transplant Congress
Faster B Cell Rebound is Observed Following Xenotransplantation Compared to Allotransplantation in a Highly Sensitized Nonhuman Primate Kidney Transplantation Model
Surgery, Duke Transplant Center, Durham, NC
*Purpose: Xenotransplantation outcomes have been greatly improved due to the advent of genetically engineered pigs and agents targeting the CD40-CD40L signaling pathway. However, studies have…2021 American Transplant Congress
T-cell-Mediated Immunity to Sars-cov-2 Defines Covid-19 Risk and Severity in Transplanted and Non-Transplanted Individuals and Associates with Myeloid-Derived Suppressor Cells
*Purpose: We assessed whether COVID-19-risk is enhanced by chronic immunosuppression, and is associated with suppressor cells.*Methods: We tested 66 COVID-19 patients, including 26 with solid…2021 American Transplant Congress
AT-1501, a Novel and Clinically Applicable CD40L Specific Monoclonal Antibody, Promotes Islet Allograft Survival in Nonhuman Primates
*Purpose: Immune intervention with a CD40L specific monoclonal antibody (mAb, Hu5c8, Biogen) has previously been shown to safely and effectively prevent islet allograft (IA) rejection…2021 American Transplant Congress
Tissue-Specific Features of Immunity Revealed by Single-cell RNA Sequencing of Healthy Human Kidney
*Purpose: Tissue-resident immune cells reside within distinct niches across organs, where they sustain tissue homeostasis and rapidly respond to perturbations in the local microenvironment. Across…2021 American Transplant Congress
Treg Engagement of Lymphotoxin Beta Receptor in Lymphatic Endothelial Cells is Required for Allograft Protection
1U Maryland, Baltimore, MD, 2Harvard U, Boston, MA
*Purpose: Sequential migration of regulatory T cells (Treg) from graft to afferent lymphatics and lymph nodes (LN) is needed for Treg suppressive function. Migration requires…
- « Previous Page
- 1
- …
- 6
- 7
- 8
- 9
- 10
- …
- 53
- Next Page »